Ventilating-port for ships.



A. VAN HERDMAN.

VENTILATING PORT FOR SHIPS.

APPLICATION FILED DEG.20, 1911,

L028 v Patented June 4, 191

I ammo/who's 49 VMJWM I V 353 aflo'wmw UNITE sTATEs PATENT orrrcn ALBERTVAN HERDMAN';

on NEW YORK, N. 'Y., ASSIGNOR or new YORK, N. Y.

T CHARLES F. WERNER,

VENTTLATING-PORT FOR SHIPS. I

Specification of Letters Patent. Application filed December 20, 1911.

Serial no. 666,934.

3T0 all whom it mug 0011067 72., J

Be it known that I, ALBERT VAN HERD MAN, a citizen of the UnitedStatesiresiding at New York city,

county and State of New York, have invented a new and Improved-Ventilating-Port for Ships, following is a specification.

This invention relates to a ships port of novel construction which isadapted to freely ,v ings 18, 19 adapted to width and communicates witheven when the port vided above the water line with alined port holes 12,13. The port side 10 is permanently hole 12 of the outer open, whiletheport -hole l3 of the inner side may be closed by a'windowed lid 14hinged at '15 and fur nished .with the usual locking means 16; \Vithinthe space between sides 10, 11, there is housed a casing 17 provi edwith open,- register wit-h openings 12, 13 respectively. Of the former,

opening 18 is provided with an inwardly ex- .0

tending tapering flange 20, while opening 19 is fla'ngeless. Aboveopenings 18, .19, casing .17 is provided with a curved inwardly .ex-

contracts in' tending duct 21 that gradually a ventilating opening'22formed in inner side 11 at asuitable distance above port hole 13. Theinner wall of this duct is of convex form asshown to constitute a shieldintermediate openings of which the while eflect-ivelycheclo I lid orvalve 27.

,18, 22 which checks the water from splashing out through opening22.Opening 22 may be closed by-a hinged cover 23,- adapt- 24 or otherwiseBelow openings 18, 19 casing 17 is provided with'an-outwardly extendingduct 25-that also gradually con tracts in width, and communicates with a10 below port hole 12. This openings is pro- ;vided with a hingedoutwardly oscillatable vIt will be seen' that ventilating air is at alltimes free to enter the .ship through opehing 22, even if'lid 14 isclosed. The waterenteringi casing 17 through port hole '12, is freelyreturned through opening 26, valye 27 permitting the egress of suchwater its ingress. I claim: I

A ship provided with double sides having outer and inner port holes, anapertured casing fitted between said sides and having an upper inwardlyextending curved duct that gradually contracts in width and has .aninner convex wall to constitute a water shield, a lower downwardly andoutwardly extending duct,lan opening in the inner wall that communicateswith the upper duct, an opening in the-outer wall that communicates withthe lower duct, and an outwardly openin n ALBERT VAN HERDMAN. WitnessesARTHUR 'E..ZUM1E,

KATHERYN'E KOCH.

oscillatable valve controllingthe last named Patented J une 4,1912,

ed to be held in its open position by a catch wateregress opening 26formed in outer side from the casing, while effectively checking

